Ensure optimal piping temperature control on your next project with this Semi-Slit Black Polyethylene Foam Pipe Insulation. This flexible, closed-cell foam insulation provides reliable protection for both hot and cold plumbing lines from freezing or condensation. This product features a 2-1/8" ID, 3/4" wall thickness, and fits 2" CTS pipe. Includes 54 ft per carton.